Now showing items 1-20 of 43

  • Characterization of small planets with Kepler and HARPS-N 

    Bonomo, A. S.; Sozzetti, A.; Lovis, C.; Malavolta, L.; Rice, K.; Dumusque, X.; Cameron, A. C.; Latham, D. W.; Molinari, E.; Pepe, F.; Udry, S. (EDP Sciences, 2015-09-23) - Conference item
    The high-accuracy and high-precision HARPS-N spectrograph has been installed at the italian Telescopio Nazionale Galileo in La Palma approximately two years and a half ago. Eighty nights per year of Guaranteed Time of ...
  • Characterization of the planetary system Kepler-101 with HARPS-N : A hot super-Neptune with an Earth-sized low-mass companion 

    Bonomo, A.S.; Sozzetti, A.; Lovis, C.; Malavolta, L.; Rice, K.; Buchhave, L.A.; Sasselov, D.; Cameron, A.C.; Latham, D.W.; Molinari, E.; Pepe, F.; Udry, S.; Affer, L.; Charbonneau, D.; Cosentino, R.; Dressing, C.D.; Dumusque, X.; Figueira, P.; Fiorenzano, A.F.M.; Gettel, S.; Harutyunyan, A.; Haywood, R.D.; Horne, K.; Lopez-Morales, M.; Mayor, M.; Micela, G.; Motalebi, F.; Nascimbeni, V.; Phillips, D.F.; Piotto, G.; Pollacco, D.; Queloz, D.; Ségransan, D.; Szentgyorgyi, A.; Watson, C. (2014-12) - Journal article
    We characterize the planetary system Kepler-101 by performing a combined differential evolution Markov chain Monte Carlo analysis of Kepler data and forty radial velocities obtained with the HARPS-N spectrograph. This ...
  • Constraining planet structure from stellar chemistry : the cases of CoRoT-7, Kepler-10, and Kepler-93 

    Santos, N. C.; Adibekyan, V.; Mordasini, C.; Benz, W.; Delgado-Mena, E.; Dorn, C.; Buchhave, L.; Figueira, P.; Mortier, Annelies; Pepe, F.; Santerne, A.; Sousa, S. G.; Udry, S. (2015-08-17) - Journal article
    Aims. We explore the possibility that the stellar relative abundances of different species can be used to constrain the bulk abundances of known transiting rocky planets. Methods. We use high resolution spectra to derive ...
  • The discovery of WASP-151b, WASP-153b, WASP-156b : insights on giant planet migration and the upper boundary of the Neptunian desert 

    Demangeon, Olivier. D. S.; Faedi, F.; Hébrard, G.; Brown, D. J. A.; Barros, S. C. C.; Doyle, A. P.; Maxted, P. F. L.; Collier Cameron, A.; Hay, K. L.; Alikakos, J.; Anderson, D. R.; Armstrong, D. J.; Boumis, P.; Bonomo, A. S.; Bouchy, F.; Haswell, C. A.; Hellier, C.; Kiefer, F.; Lam, K. W. F.; Mancini, L.; McCormac, J.; Norton, A. J.; Osborn, H. P.; Palle, E.; Pepe, F.; Pollacco, D. L.; Prieto-Arranz, J.; Queloz, D.; Ségransan, D.; Smalley, B.; Triaud, A. H. M. J.; Udry, S.; West, R.; Wheatley, P. J. (2017-10) - Journal article
    To investigate the origin of the features discovered in the exoplanet population, the knowledge of exoplanets' mass and radius with a good precision is essential. In this paper, we report the discovery of three transiting ...
  • Discovery of WASP-65b and WASP-75b : two hot Jupiters without highly inflated radii 

    Gómez Maqueo Chew, Y.; Faedi, F.; Pollacco, D.; Brown, David John Alexander; Doyle, A.P.; Collier Cameron, A.; Gillon, M.; Lendl, M.; Smalley, B.; Triaud, A.H.M.J.; West, R.G.; Wheatley, P.J.; Busuttil, R.; Liebig, C.; Anderson, D.R.; Armstrong, D.J.; Barros, S.C.C.; Bento, J.; Bochinski, J.; Burwitz, V.; Delrez, L.; Enoch, B.; Fumel, A.; Haswell, C.A.; Hébrard, G.; Hellier, C.; Holmes, S.; Jehin, E.; Kolb, U.; Maxted, P.F.L.; McCormac, J.; Miller, G.R.M.; Norton, A.J.; Pepe, F.; Queloz, D.; Rodríguez, J.; Ségransan, D.; Skillen, I.; Stassun, K.G.; Udry, S.; Watson, C. (2013-11-01) - Journal article
    We report the discovery of two transiting hot Jupiters, WASP-65b (Mpl = 1.55 ± 0.16 MJ; Rpl = 1.11 ± 0.06 RJ), and WASP-75b (Mpl = 1.07 ± 0.05 MJ; Rpl = 1.27 ± 0.05 RJ). They orbit their host star every ~2.311, and ~2.484 ...
  • Disentangling planetary orbits from stellar activity in radial-velocity surveys 

    Haywood, R.D.; Cameron, A.C.; Queloz, D.; Barros, S.C.C.; Deleuil, M.; Fares, R.; Gillon, M.; Hatzes, A.; Lanza, A.F.; Lovis, C.; Moutou, C.; Pepe, F.; Pollacco, D.; Santerne, A.; Ségransan, D.; Unruh, Y. (2014-04-01) - Journal article
    The majority of extra-solar planets have been discovered (or confirmed after follow-up) through radial-velocity (RV) surveys. Using ground-based spectrographs such as High Accuracy Radial Velocity Planetary Search (HARPS) ...
  • The EBLM project I. Physical and orbital parameters, including spin-orbit angles, of two low-mass eclipsing binaries on opposite sides of the brown dwarf limit 

    Triaud, A. H. M. J.; Hebb, L.; Anderson, D. R.; Cargile, P.; Collier Cameron, A.; Doyle, A. P.; Faedi, F.; Gillon, M.; Gomez Maqueo Chew, Y.; Hellier, C.; Jehin, E.; Maxted, P.; Naef, D.; Pepe, F.; Pollacco, D.; Queloz, D.; Ségransan, D.; Smalley, B.; Stassun, K.; Udry, S.; West, R. G. (2013-01) - Journal article
    This paper introduces a series of papers aiming to study the dozens of low-mass eclipsing binaries (EBLM), with F, G, K primaries, that have been discovered in the course of the WASP survey. Our objects are mostly single-line ...
  • An extreme planetary system around HD 219828 : one long-period super Jupiter to a hot-Neptune host star 

    Santos, N. C.; Santerne, A.; Faria, J. P.; Rey, J.; Correia, A. C. M.; Laskar, J.; Udry, S.; Adibekyan, V.; Bouchy, F.; Delgado-Mena, E.; Melo, C.; Dumusque, X.; Hébrard, G.; Lovis, C.; Mayor, M.; Montalto, M.; Mortier, A.; Pepe, F.; Figueira, P.; Sahlmann, J.; Ségransan, D.; Sousa, S. G. (2016-08) - Journal article
    Context. With about 2000 extrasolar planets confirmed, the results show that planetary systems have a whole range of unexpected properties. This wide diversity provides fundamental clues to the processes of planet formation ...
  • Five transiting hot Jupiters discovered using WASP-South, Euler, and TRAPPIST : WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b, and WASP-133 b 

    Maxted, P. F. L.; Anderson, D. R.; Collier Cameron, A.; Delrez, L.; Gillon, M.; Hellier, C.; Jehin, E.; Lendl, M.; Neveu-VanMalle, M.; Pepe, F.; Pollacco, D.; Queloz, D.; Ségransan, D.; Smalley, B.; Smith, A. M. S.; Southworth, J.; Triaud, A. H. M. J.; Udry, S.; Wagg, T.; West, R. G. (2016-07) - Journal article
    We have used photometry from the WASP-South instrument to identify 5 stars showing planet-like transits in their light curves. The planetary nature of the companions to these stars has been confirmed using photometry from ...
  • From dense hot Jupiter to low-density Neptune : the discovery of WASP-127b, WASP-136b, and WASP-138b 

    Lam, K. W. F.; Faedi, F.; Brown, D. J. A.; Anderson, D. R.; Delrez, L.; Gillon, M.; Hébrard, G.; Lendl, M.; Mancini, L.; Southworth, J.; Smalley, B.; Triaud, A. H. M.; Turner, O. D.; Hay, K. L.; Armstrong, D. J.; Barros, S. C. C.; Bonomo, A. S.; Bouchy, F.; Boumis, P.; Collier Cameron, A.; Doyle, A. P.; Hellier, C.; Henning, T.; Jehin, E.; King, G.; Kirk, J.; Louden, T.; Maxted, P. F. L.; McCormac, J. J.; Osborn, H. P.; Palle, E.; Pepe, F.; Pollacco, D.; Prieto-Arranz, J.; Queloz, D.; Rey, J.; Ségransan, D.; Udry, S.; Walker, S.; West, R. G.; Wheatley, P. J. (2017-03-01) - Journal article
    We report three newly discovered exoplanets from the SuperWASP survey. WASP-127b is a heavily inflated super-Neptune of mass 0.18 ± 0.02 MJ and radius 1.37 ± 0.04 RJ. This is one of the least massive planets discovered by ...
  • The GAPS programme with HARPS-N at TNG I. Observations of the Rossiter-McLaughlin effect and characterisation of the transiting system Qatar-1 

    Covino, E.; Esposito, M.; Barbieri, M.; Mancini, L.; Nascimbeni, V.; Claudi, R.; Desidera, S.; Gratton, R.; Lanza, A. F.; Sozzetti, A.; Biazzo, K.; Affer, L.; Gandolfi, D.; Munari, U.; Pagano, I.; Bonomo, A. S.; Cameron, A. Collier; Hebrard, G.; Maggio, A.; Messina, S.; Micela, G.; Molinari, E.; Pepe, F.; Piotto, G.; Ribas, I.; Santos, N. C.; Southworth, J.; Shkolnik, E.; Triaud, A. H. M. J.; Bedin, L.; Benatti, S.; Boccato, C.; Bonavita, M.; Borsa, F.; Borsato, L.; Brown, D.; Carolo, E.; Ciceri, S.; Cosentino, R.; Damasso, M.; Faedi, F.; Martinez Fiorenzano, A. F.; Latham, D. W.; Lovis, C.; Mordasini, C.; Nikolov, N.; Poretti, E.; Rainer, M.; Rebolo Lopez, R.; Scandariato, G.; Silvotti, R.; Smareglia, R.; Alcala, J. M.; Cunial, A.; Di Fabrizio, L.; Di Mauro, M. P.; Giacobbe, P.; Granata, V.; Harutyunyan, A.; Knapic, C.; Lattanzi, M.; Leto, G.; Lodato, G.; Malavolta, L.; Marzari, F.; Molinaro, M.; Nardiello, D.; Pedani, M.; Prisinzano, L.; Turrini, D. (2013-06) - Journal article
    Context. Our understanding of the formation and evolution of planetary systems is still fragmentary because most of the current data provide limited information about the orbital structure and dynamics of these systems. ...
  • The HARPS search for southern extra-solar planets : XXXVIII. Bayesian re-analysis of three systems. New super-Earths, unconfirmed signals, and magnetic cycles 

    Díaz, R. F.; Ségransan, D.; Udry, S.; Lovis, C.; Pepe, F.; Dumusque, X.; Marmier, M.; Alonso, R.; Benz, W.; Bouchy, F.; Coffinet, A.; Cameron, Andrew Collier; Deleuil, M.; Figueira, P.; Gillon, M.; Lo Curto, G.; Mayor, M.; Mordasini, C.; Motalebi, F.; Moutou, C.; Pollacco, D.; Pompei, E.; Queloz, D.; Santos, N.; Wyttenbach, A. (2016-01) - Journal article
    We present the analysis of the entire HARPS observations of three stars that host planetary systems: HD 1461, HD 40307, and HD 204313. The data set spans eight years and contains more than 200 nightly averaged velocity ...
  • The HARPS search for southern extra-solar planets. XL. Searching for Neptunes around metal-poor stars 

    Faria, J. P.; Santos, N. C.; Figueira, P.; Mortier, A.; Dumusque, X.; Boisse, I.; Lo Curto, G.; Lovis, C.; Mayor, M.; Melo, C.; Pepe, F.; Queloz, D.; Santerne, A.; Ségransan, D.; Sousa, S. G.; Sozzetti, A.; Udry, S. (2016-05) - Journal article
    Context. As a probe of the metallicity of proto-planetary disks, stellar metallicity is an important ingredient for giant planet formation, most likely through its effect on the timescales in which rocky or icy planet cores ...
  • The HARPS search for southern extra-solar planets. XXXIX. HD175607 the most metal-poor G dwarf with an orbiting sub-Neptune 

    Mortier, Annelies; Faria, J. P.; Santos, N. C.; Rajpaul, V.; Figueira, P.; Boisse, I.; Cameron, Andrew Collier; Dumusque, X.; Lo Curto, G.; Lovis, C.; Mayor, M.; Melo, C.; Pepe, F.; Queloz, D.; Santerne, A.; Ségransan, D.; Sousa, S. G.; Sozzetti, A.; Udry, S. (2016-01) - Journal article
    Context. The presence of a small-mass planet (Mp < 0.1 MJup) seems, to date, not to depend on metallicity, however, theoretical simulations have shown that stars with subsolar metallicities may be favoured for harbouring ...
  • HARPS-N @ TNG, two year harvesting data : performances and results 

    Cosentino, R.; Lovis, C.; Pepe, F.; Cameron, A.C.; Latham, D.W.; Molinari, E.; Udry, S.; Bezawada, N.; Buchschacher, N.; Figueira, P.; Fleury, M.; Ghedina, A.; Glenday, A.G.; Gonzalez, M.; Guerra, J.; Henry, D.; Hughes, I.; Maire, C.; Motalebi, F.; Phillips, D.F. (SPIE, 2014) - Conference item
    The planet hunter HARPS-N[1], in operation at the Telescopio Nazionale Galileo (TNG)[13] from April 2012 is a highresolution spectrograph designed to achieve a very high radial velocity precision measurement thanks to an ...
  • The HARPS-N Rocky Planet Search : I. A transiting rocky planet in a 4 planet system at 6.5 pc from the Sun 

    Motalebi, F.; Udry, S.; Gillon, M.; Lovis, C.; Segransan, D.; Buchhave, L. A.; Demory, B. O.; Malavolta, L.; Dressing, C. D.; Sasselov, D.; Rice, K.; Charbonneau, D.; Cameron, Andrew Collier; Latham, D.; Molinari, E.; Pepe, F.; Affer, L.; Bonomo, A. S.; Cosentino, R.; Dumusque, X.; Figueira, P.; Fiorenzano, A. F. M.; Gettel, S.; Harutyunyan, A.; Haywood, Raphaelle Dawn; Johnson, J.; Lopez, E.; Lopez-Morales, M.; Mayor, M.; Micela, G.; Mortier, A.; Nascimbeni, V.; Philips, D.; Piotto, G.; Pollacco, D.; Queloz, D.; Sozzetti, A.; Vanderburg, A.; Watson, C. A. (2015-12) - Journal article
    We present here the detection of a system of four low-mass planets around the bright (V=5.5) and close-by (6.5 pc) star HD219134. This is the first result of the Rocky Planet Search program with HARPS-N on the TNG in La ...
  • Hot Jupiters with relatives: discovery of additional planets in orbit around WASP-41 and WASP-47 

    Neveu-VanMalle, M.; Queloz, D.; Anderson, D. R.; Brown, David John Alexander; Cameron, Andrew Collier; Delrez, L.; Díaz, R. F.; Gillon, M.; Hellier, C.; Jehin, E.; Lister, Timothy Andrew; Pepe, F.; Rojo, P.; Ségransan, D.; Triaud, A. H. M. J.; Turner, O. D.; Udry, S. (2016-02) - Journal article
    We report the discovery of two additional planetary companions to WASP-41 and WASP-47. WASP-41 c is a planet of minimum mass 3.18 ± 0.20 MJup and eccentricity 0.29 ± 0.02, and it orbits in 421 ± 2 days. WASP-47 c is a ...
  • K2-110 b: a massive mini-Neptune exoplanet 

    Osborn, H. P.; Santerne, A.; Barros, S. C. C.; Santos, N. C.; Dumusque, X.; Malavolta, L.; Armstrong, D. J.; Hojjatpanah, S.; Demangeon, O.; Adibekyan, V.; Almenara, J.-M.; Barrado, D.; Bayliss, D.; Boisse, I.; Bouchy, F.; Brown, D. J. A.; Cameron, A. C.; Charbonneau, D.; Deleuil, M.; Delgado Mena, E.; Díaz, R. F.; Hébrard, G.; Kirk, J.; King, G.W.; Lam, K. W. F.; Latham, D.; Lillo-Box, J.; Louden, T. M.; Lovis, C.; Marmier, M.; McCormac, J.; Molinari, E.; Pepe, F.; Pollacco, D.; Sousa, S. G.; Udry, S.; Walker, S. R. (2017-08) - Journal article
    We report the discovery of the exoplanet K2-110 b (previously EPIC212521166b) from K2 photometry orbiting in a 13.8637d period around an old, metal-poor K3 dwarf star. With a V-band magnitude of 11.9,K2-110 is particularly ...
  • The kepler-10 planetary system revisited by harps-n : A hot rocky world and a solid neptune-mass planet 

    Dumusque, X.; Bonomo, A.S.; Haywood, R.D.; Malavolta, L.; Ségransan, D.; Buchhave, L.A.; Cameron, A.C.; Latham, D.W.; Molinari, E.; Pepe, F.; Udry, S.; Charbonneau, D.; Cosentino, R.; Dressing, C.D.; Figueira, P.; Fiorenzano, A.F.M.; Gettel, S.; Harutyunyan, A.; Horne, K.; Lopez-Morales, M.; Lovis, C.; Mayor, M.; Micela, G.; Motalebi, F.; Nascimbeni, V.; Phillips, D.F.; Piotto, G.; Pollacco, D.; Queloz, D.; Rice, K.; Sasselov, D.; Sozzetti, A.; Szentgyorgyi, A.; Watson, C. (2014-07-10) - Journal article
    Kepler-10b was the first rocky planet detected by the Kepler satellite and confirmed with radial velocity follow-up observations from Keck-HIRES. The mass of the planet was measured with a precision of around 30%, which ...
  • Planets and stellar activity : hide and seek in the CoRoT-7 system 

    Haywood, R. D.; Cameron, A. Collier; Queloz, D.; Barros, S. C. C.; Deleuil, M.; Fares, R.; Gillon, M.; Lanza, A. F.; Lovis, C.; Moutou, C.; Pepe, F.; Pollacco, D.; Santerne, A.; Segransan, D.; Unruh, Y. C. (2014-09-21) - Journal article
    Since the discovery of the transiting super-Earth CoRoT-7b, several investigations have yielded different results for the number and masses of planets present in the system, mainly owing to the star's high level of activity. ...